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Excerpt from Pumps and Pumping Machinery
The barrels are made both in wrought and cast iron, at the bottom of the pump a suction valve is provided, this is made of leather closing on a seat of iron or wood; the bucket is made of wood or iron, the exterior being fitted with a cup leather, a valve of metal or leather is provided in the centre of the bucket; for rough purposes no foot valve is provided. A connecting rod is attached to the bucket, and by means of a pin at the top end the working handle is connected the fulcrum of the handle is fixed to the top of the pump barrel. These pumps are made in various sizes from 3 inches to 6 inches diameter; a superior pump is made with double cast-iron barrels, having one valve box at the bottom, and one delivery Spout at the top, a double lever vibrating on a centre fulcrum is used to work the pumps; four or more men are required to work them. Common cast-iron pumps. — These are for pumping out sewage, or other like purposes, also for roadside pumps; the barrels are cast iron, the buckets are packed with leather, and are also cast iron, they have a central valve the same as those named above, in the better kind, foot valves are provided. At the top of the barrel a spout is formed the cover of the barrel is separate and is either loose or bolted on; these pumps deliver the water at the top, through the spout.
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Pumps and Pumping Machinery, Vol. 2 (Classic Reprint)
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Paperback. Zustand: New. Print on Demand. This book presents a comprehensive and practical guide to pumping machinery, delving into its historical evolution while addressing the most pertinent modern developments and diverse applications of pump technology in the fields of domestic, industrial, and municipal water management. The author takes a close and detailed look at the different types of pumps, their construction, working principles, and their specific uses in various scenarios, providing valuable insights into the strengths and limitations of each type. A thorough exploration of pump performance and efficiency under varying conditions is also included, equipping readers with the knowledge to select the most appropriate pump for their specific needs. The book culminates in discussions on the latest advancements in pump design and operation, showcasing innovative approaches that enhance efficiency and reliability. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item. Bestandsnummer des Verkäufers 9781330145913_0
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